Paddle aqua-glider used to propel floats, reach remote places and objects, survey rescue in water

ABSTRACT

Oar, ancient propulsive mean is known many hundreds years ago and is not exchanged until now. Here is offered a new paddle device—a paddle aqua-glider able to exchange oars partially and it is able to expand applicability of manual paddle means much far. The paddle aqua-glider combines ability to glide forward with ability to rise up and to function as a paddle when backward force (such a cord tension) applied to it.  
     If here is no need to propel floating mean then the paddle glider can function in fleeing mode of operation that requires slackening and elongating the cord tied to the glider for it keel rear edge. This allows the glider to glide away forward freely in each cycle and to reach any desired distanced place or object on its way delivering help or something needed. It can also provide remote survey, rescue, hunting, seizing, etc.

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The invention has no analogues.

STATEMENT REGARDING FEDERALLY SPONSORED R & D

[0002] The author created the invention by himself with own means induty free time.

REFERENCE TO A MICROFICHE APPENDIX

[0003] Not Applicable.

BACKGROUND OF THE INVENTION

[0004] About Oars.

[0005] Until now the only oars are well known as the ancient paddle meandriven manually.

[0006] It seems, as the oars will never vanish out off human activity.However, the oars using requires a float to be of special form like aboat, an oblong raft and soon usually equipped with rowlocks. We can notuse it when swimming or diving. We can not use it when we are on icefloe. We do not know diverse usage of the oars.

[0007] Endeavor:

[0008] Here we offer new type of paddle mean sharply changing itscapabilities and methods to use it. Also it opens new opportunities ofusage the same device in variety practical cases. The paddle device isdesigned as a paddle aqua-glider linked with a user through a cord, acable, a string or a fishing-line.

[0009] As a glider it is able to outset itself far enough from an user,but as a paddle it is able to stay steady similar to an anchor when theuser or a rower pulls the a cord back. Owing to design the paddle gliderraises up when the user pulls it with the cord.

[0010] If the user does not paddle (for example stays on the shore) heslacks away a part of the cord to give freedom to the paddle glider,which glides far utilizing potential energy obtained at its rising time.After multiple repetition of described process the paddle glider getsany place on its way delivering itself as help or something needed.

BRIEF SUMMARY OF INVENTION

[0011] The general idea of the claimed invention is usage repeatablerecombination of forces applied to the aqua-glider in order to set it inpaddle mode of operation rising it to take potential gravity energyproviding for next cycle moving forward. The recombination of forces isaccomplished by pulling and slacking the cord attached to the paddleglider keel.

[0012] If the cord is of constant length than the user is a rowerpaddling with the paddle glider relocating forward with each cycle. Ifthe cord increases in its length then the user is rather an operatorremotely enforcing to move forward to new location or to a remote objectto contact or interact with it.

[0013] The paddle glider can be of different size and so be used fordifferent purposes individually or collectively (by a group of people).

BRIEF DESCRIPTION OF SEVERAL VIEWS OF DRAWINGS

[0014]FIGS. 1, 2, 3. Paddle aqua-glider (front, right side and bottomviews).

[0015]FIG. 4. Aqua-glider uniformly slides down under gravity G andhydrodynamic pressure P.

[0016]FIG. 5. A lock mechanism integrating a keel and a hydrofoil to apaddle aqua-glider.

[0017]FIG. 6. State balancing three basic forces: gravity G,hydrodynamic pressure P and tension D.

[0018]FIG. 7. Paddle aqua-glider describes looking-like-a-saw path underrepeatable recombination of applied forces caused by periodical zeroingforce D.

[0019]FIG. 8. Common diagram for forces applied to the paddleaqua-glider.

[0020]FIGS. 9, 10. Centralized forces balance diagrams for small andgreat tension force D.

[0021]FIGS. 11, 12. A paddle aqua-glider able to collapse for convenienttransportation, storage.

[0022]FIG. 13. A rower uses a paddle aqua-glider to propel a boat.

[0023]FIG. 14. A winter fishermen propels a broken off ace floe with apaddle glider.

[0024]FIG. 15. A rescuer directs a paddle aqua-glider to a drowning man.

[0025]FIG. 16. A paddle aqua-glider rigged with a TV camera and ahermetic electric light.

[0026]FIGS. 17,18. A paddle aqua-glider rigged with some tool: harpoon,awl, hook, gaff etc. (side view and a view of up right movement causedby tension D>0).

[0027]FIG. 19. Under water (under ace) remote survey with a paddleaqua-glider rigged with a TV camera and a hermetic light.

[0028] NUMERIC SYSTEM SIGNING ELEMENTS AND PARTS OF SYSTEMS Tens Units0:0 1- rounded edge, 2- foil (wing), 3- attachment, 4- keel, _:5-sinker, 6- nest, 7- latch, 8- cord, 9- eye, 1:0- keel root, 1- flatspring, 2- screw, 3- hinge, 4- pillar, _:5- stopper, 6- boat, 7- paddleglider, 8- ice, 9- plate, 2:0- ware, 1- hermetic tube, 2- channel, 3- TVcamera, 4- canopy, _:5- hermetic light, 6- tool seat, 7- pike, 8-ice-hole.

[0029] Letter's Denotes:

[0030] α—tension deflection angle, σ—tension inclination, ν—paddleglider inclination, F—angle opening, β—gravity angle, XY—coordinatesystem, P—hydrodynamic pressure force (head), D—tension (pulling force),L—lifting force, G—gravity force, T—free gliding thrust, E—distancebetween gravity center and an eye, R—distance between gravity center andthe eye center, A—eye center, O—gravity center, C—hydrodynamic headcenter, V—velocity of propulsion, V1—rising velocity, V2—glidingvelocity.

DETAILED DESCRIPTION OF INVENTION

[0031] 1. Conception. Claim 3)

[0032] The paddle aqua-glider combines two its abilities: first, toglide translationaly under gravity force; second, to be orient cross itsgliding, to rise up and to function as a paddle under tension applied toit through taut cord. This type of operation is named as paddling modeof operation. The cord length is not changed here. If there is nonecessity to paddle then paddle functioning is not used. And we have twoother modes of operation.

[0033] If after rising up the paddle glider returns to initial positionby water surface by pulling it back with the tension the mode ofoperation is named as hovering mode of operation. A man (operator)slackens but does not elongate the cord and the paddle glider slidesforward again to the same remote position. Process is repeated and thepaddle glider accomplishes closed cycle of motions around the sameplace. It can be used for fishing if the paddle glider is rigged withfishing hook and it is small enough.

[0034] If after rising up and cord slackening the paddle gliderinstantly slides forward to new remote position then the mode ofoperation is named as fleeing mode of operation. The man elongates thecord by loosing it from a bobbin or a coil.

[0035] 2. Design and Description of Work for the Paddle Glider.

[0036] The paddle glider is very simple device (FIG. 1). It consists ofa foil or a wing 2 connected to a keel 4 with attachment 3. It is notobligatory but some time it is desirable to disconnect the wing 2 andthe keel 4 in order to pack the paddle glider when it is stored ortransported. As we see (FIG. 1, FIG. 2, FIG. 5), the keel can be removedfrom the nest 6 by sliding it out predetermine unlocking it with thelatch 7 fixed to the wing 2 with the flat spring 11 (FIG. 5). Slidingdirections are shown with the arrow M. The keel holds a streamlinesinker 5.

[0037] If we suppose that the glider weight is concentrated in thesinker 5 then the glider has two basic forces: gravity G and lift L thatare balancing each other. For gliding it is needed that the hydrodynamicpressure P force (perpendicular to the wing plane) and the gravity forceG should not be coincide and the gravity force needs to be shiftedforward as shown by FIG. 2. In this case the glider takes forwardinclination β (FIG. 4) when it is released and starts gliding.

[0038] The hydrodynamic force P is resolved into components L (lift) andT (thrust). The lift L equilibrates the gravity force G while the thrustT overcomes a hydrodynamic resistance force and moves the device withvelocity V2 (if the cord 8 is not taut).

[0039] A man pulling the cord 8 with the force D overturns the paddleglider orienting it cross to the cord line 8 (FIG. 6). This createshydrodynamic head P. The horizontal component of it is the desiredthrust propelling the floating mean. (claim 1) This componentequilibrates horizontal component of the force D. Also sum of verticalcomponents of the forces P and D is the lift L equilibrating the gravityforce G. Here we see the simplest case when the forces L and G arecoincide on the line.

[0040] In paddling mode operation the tension D (FIG. 7) enforces theglider also to rise up with velocity V1. (claim 2) Zeroing the force Dallows the glider first to speed up then to glide with some velocity V2.The new repetition of the force D revives the described process of thepaddling mode of operation. It is clear that the velocity V2 is greaterthan the velocity V of some float propelled with the paddle aqua-glider.

[0041] 3. Theoretic Basics and Numeric Example.

[0042] The theoretic basics allows to link and to understand the paddleglider behavior with its geometrical parameters, direction and volume ofacting forces (especially the tension D). For consideration we havethree the most important dots: O—gravity center, C—hydrodynamic headcenter, A—center of tension application. Also the very important centeris the side-stabilizing center S.

[0043] To find the center of gravity O we can hang the paddleaqua-glider with string sequentially for the center A then for thecenter C. Lines continuing the strings along the keel plane are crossingat the gravity center O. Distances AO and CO represent constanteccentricities E and R.

[0044] If the paddle glider moves uniformly and does not change itsangle position then it is in balance state where the vector sum of allforce moments is zero and the vector sum of all forces acting on thepaddle glider is also zero.

[0045] Sum of the forces P and D projections on the axis X is equalzero, so we have:

P·sin ν−D·sin σ=0.  (1)

[0046] Sum of the projections of forces P and D on the vertical axis Y,the force gravity G is equal zero:

P·cos ν+D·cos σ−G=0.  (2)

[0047] Because the angle σ and drag force D are supposedly known (easymeasured) then equations 1 and 2 give an expression finding the angle νof the paddle glider inclination:

tan ν=D·sin σ/(G−D·cos σ).  (3)

[0048] After finding the angle ν we can find the force P from theequation 1:

P=D·sin σ/sin ν.  (4)

[0049] For our example σ=82.5°, so sin σ=0.99, cos σ=0.13. If G=1.5 Kgand D=5 Kg then according the equation 3 we have tanν=0.99·5/(1.5−5·0.13)=4.2. So ν=76.5° or ν=1.337 radians and sinν=0.9728. It gives P=5·0.99/0.9728=5.088 Kg.

[0050] Now we can find also the tension deflection angle

α=ν+σ−F.  (5)

[0051] In our example F=127°. So α=82.5°+76.5°−127°=32°. Thus the paddleglider picture (FIG. 8) should be turned anti clockwise for 12°additionally because it is depicted originally with the angle α=20°.

[0052] 4. Collapsibility and Stabilization.

[0053] The paddle glider can be made collapsible (FIG. 1, FIG. 12). Forthat its wing 2 and sinker 5 are connected (instead a keel) withstreamlined pillars 14 and hinges 13. Working state is fixed with thestopper 15 depriving the hinges its mobility. The rear pillar carries aplate 19 working as a side stabilizer. All others designs uses the keel4 also as a stabilizer.

[0054] It is very important that the side pressure center S must bebehind the gravity center O. Otherwise the paddle glider loosesorientation and right direction of gliding.

[0055] 5. Applications.

[0056] 5.1. Propulsion.

[0057] The paddle glider 17 can be used effectively as propulsive meanin many cases where others can't. For example, rowing a boat (FIG. 13)in narrow place or in case of emergency. By the way, because of smallsize the paddle glider should be used in every boat as a spare paddle.

[0058] It is not difficult to imagine how a swimmer or an underwaterswimmer can use the paddle glider for accelerating his swimming. Sometimes it is more effective than feet flippers. Till this moment we werepowerless when we try to row on an ice floe or on a raft. The paddleglider is the best solution for this case (FIG. 14).

[0059] 5.2. Rescue.

[0060] A rescuer uses the paddle glider in fleeing mode operation (FIG.15). He repeatedly looses a cord elongating it every time after pullingtaut. When the paddle glider reaches a drowning person the last oneshould seize it. The rescuer then pulls it out off water together withthe drowning person.

[0061] 5.3. Special applications.

[0062] The paddle glider can be rigged with different tools providingadditional functionality to it. It can be rigged with a hermetic lightand TV camera (FIG. 16) and be used for survey under water spaces (FIG.19) in criminal or industrial cases. Here the cord should be exchangedwith the thin but strong cable delivering video signal.

[0063] The other application is a flexible remotely acting, harpoon,hook or a gaff (FIG. 17). Repeatedly pulling the cord a user bring thepaddle glider closer to a floating object. At last moment when thepaddle glider has approached to the object beneath of it the user shouldsharply pull cord enforcing the paddle glider to turn and rise up veryfast (FIG. 18). The pike 27 sticks into the floating object (a log, ashark, a raft etc.). Now the user can deliver it to him.

What I claim as my invention is:
 1. Method using a aqua-glider as apaddle based on application of cord connected to rear edge of theaqua-glider keel; the cord tension orients the aqua-glider by its wingcross the cord line in each tension cycle and it experiences impulsiveforward reaction—water resistance of aqua-glider wing treated aspropelling thrust; the aqua-glider also rises up when the cord is tautand it glides away from gotten height to new position when the cord isslackened.
 2. Method enforcing aqua-glider to get initial heightreviving glide process and based on cyclic application of impulsiveforce to the aqua-glider keel rear edge backward that overturns theaqua-glider by its wing cross the force direction and lifts theaqua-glider up to the initial height.
 3. Aqua-glider alternativelygliding away and rising up to initial height due to impulsive forcecyclically applied backward to the aqua-glider keel rear edge mainlywith taut cord connected to it and overturning the aqua-glider by itswing cross glide direction as a paddle; as a result the aqua-glider isable to work in three modes of operation: paddle mode providing cyclicalimpulsive thrust for a floating mean, which a user applies theaqua-glider from keeping constant the cord length; fleeing mode when theaqua-glider glides away to a distanced place or object for help,surveying, hunting or seizing; in this case the user elongates the workpart of the cord; hovering mode displaying the aqua-glider cyclic motionabout the same place without advance; each cycle the aqua-glider returnsto initial position by water surface starting glide repetition.